World Resorts Saint Lucia Castries Weather

Castries 7 Days Forecast

02.05
sat
Day
82°F
W 17 mph
Precip.
84%
Night
79°F
W 15 mph
Precip.
72%
03.05
sun
Day
84°F
W 15 mph
Precip.
0%
Night
79°F
W 16 mph
Precip.
100%
04.05
mon
Day
84°F
W 16 mph
Precip.
0%
Night
79°F
W 15 mph
Precip.
62%
05.05
tue
Day
84°F
W 16 mph
Precip.
0%
Night
79°F
W 14 mph
Precip.
62%
06.05
wed
Day
84°F
W 15 mph
Precip.
0%
Night
79°F
W 13 mph
Precip.
0%
07.05
thu
Day
84°F
W 13 mph
Precip.
0%
Night
79°F
W 9 mph
Precip.
46%
08.05
fri
Day
82°F
SW 13 mph
Precip.
100%
Night
77°F
W 9 mph
Precip.
0%

Sea water temperature in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 82.7°F. The highest and lowest sea temperatures during the month were 83.7°F and 81.7°F.

Air temperature in Castries, °F

Precipitation total in Castries, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Castries

Sunniest months:
December 4 days
March 4 days
September 4 days
Warmest months:
September 86.8 °F
October 86.0 °F
August 85.8 °F
Warmest sea temp:
September 84.8 °F
October 84.6 °F
August 84.0 °F
Coldest months:
January 81.8 °F
February 81.9 °F
March 82.1 °F
Rainiest months:
August 7 days
October 5 days
September 5 days
Windiest months:
June 15.7 mph
February 15.4 mph
January 15.0 mph

Castries on a weather map

Current weather
13:29
Castries
+82°F
W 17 mph
Feels like: +88°F
Precip.: 84%
Places in Saint Lucia:
Name
°F
Vieux Fort
+82°F
Castries
+82°F
24 Hours Forecast
Castries
Local time: 13:29
May 02, saturday
1500
82°F
W
15 mph
1800
81°F
W
14 mph
2100
79°F
W
15 mph
May 03, sunday
0000
79°F
W
15 mph
0300
79°F
W
13 mph
0600
79°F
W
14 mph
0900
82°F
W
14 mph
1200
84°F
W
15 mph
Units of measurement: °C / °F